416 Rev. T. Blackburn oyi Hawaiian Neuroptera, 



Fourteen postcubital nervules in anterior wing, twelve in 

 posterior. Three cellules between quadrilateral and nodus. 



Colour dark bronzy green above, testaceous beneath. 



Labium, labrum, aiid a narrow line along back of head 

 (which is fringed with yellow hairs) not quite reaching the 

 eyes, bright yellow. Posterior margin of prothorax (which 

 is elevated and rounded) and some obscure spots yellow. 

 Thorax with a well-defined elevated central line, a broad ante- 

 humeral line, and some broad lateral lines, yellow. Pectus 

 yellow. 



Legs bright yellow, with the knees, tips of tarsi and of 

 claws, and the spines intensely black. 



Hind body with segments 1-8 narrowly edged with testa- 

 ceous colour at base ; segments 9 and 10 entirely pale brown. 



(J . Tenth segment very strongly and triangularly emar- 

 ginate. Superior appendages yellow, with the apex black. 

 These appendages are strongly compressed and of almost 

 uniform width (viewed from the side) to the apex, where they 

 are sharply hooked, the hook pointing downwards. The lower 

 appendages are conspicuously longer than the upper ; they 

 are broad at the base (viewed from the side) and contracted to 

 beyond the middle, from which point they are slightly dilated 

 again and turned upwards, terminating each in two short 

 sharp spines ; they are yellow, with the tips black. 



Female unknown (subject to the N.B. below). 



Length of hind body, S 40 millim. ; length of posterior 

 wing 22 millim. ; expanse 55 millim. 



A single specimen occurred on Maui, but details of the cap- 

 ture are lost. 



N.B. — I have three specimens taken in the Nuuanu valley, 

 Oahu, which differ from the above insect as follows : — The 

 markings on the head and thorax are more obscure and of 

 a dirty testaceous colour ; the upper edge of the femora is 

 black, and the tenth segment in the male is less strongly 

 excised ; the apical segments of the hind body are coppery 

 rather than brown in tint (in one specimen this colour extends 

 to the eighth segment of hind body as well as the ninth and 

 tenth, and in another it is almost confined to the tenth). The 

 genitaliaof the female do not differmuch from thoseof female A . 

 hawaiiense^ McLachl., save that the appendages of the valvules 

 are red and the tenth segment has a more distinct longitudinal 

 dorsal elevation. The male appendages have such strongly 

 marked characters in common that I think the specimen taken 

 on Maui (described above) and these Oahuan specimens must 

 be regarded as local races of a single species in spite of their 

 differences, especially since the Oahuan specimens differ in 



